Interacting selectively with folic acid, pteroylglutamic acid. Folic acid is widely distributed as a member of the vitamin B complex and is essential for the synthesis of purine and pyrimidines [goid 5542] [evidence IEA]; Enables the directed movement of folic acid (pteroylglutamic acid) into, out of, within or between cells. Folic acid is widely distributed as a member of the vitamin B complex and is essential for the synthesis of purine and pyrimidines [goid 8517] [pmid 10542220] [evidence NAS]; Catalysis of the transfer of reduced folate from one side of a membrane to the other, up its concentration gradient. The transporter binds the solute and undergoes a series of conformational changes. Transport works equally well in either direction and is driven by a chemiosmotic source of energy. Chemiosmotic sources of energy include uniport, symport or antiport [goid 8518] [evidence IEA]; Catalysis of the transfer of thiamin from one side of the membrane to the other. Thiamin is vitamin B1, a water soluble vitamin present in fresh vegetables and meats, especially liver [goid 15234] [pmid 10542220] [evidence TAS]; Interacting selectively with folic acid, pteroylglutamic acid. Folic acid is widely distributed as a member of the vitamin B complex and is essential for the synthesis of purine and pyrimidines [goid 5542] [evidence IEA]; Catalysis of the transfer of reduced folate from one side of a membrane to the other, up its concentration gradient. The transporter binds the solute and undergoes a series of conformational changes. Transport works equally well in either direction and is driven by a chemiosmotic source of energy. Chemiosmotic sources of energy include uniport, symport or antiport [goid 8518] [evidence IEA]; Catalysis of the transfer of thiamin from one side of the membrane to the other. Thiamin is vitamin B1, a water soluble vitamin present in fresh vegetables and meats, especially liver [goid 15234] [evidence IEA]; Interacting selectively with folic acid, pteroylglutamic acid. Folic acid is widely distributed as a member of the vitamin B complex and is essential for the synthesis of purine and pyrimidines [goid 5542] [evidence IEA]; Catalysis of the transfer of reduced folate from one side of a membrane to the other, up its concentration gradient. The transporter binds the solute and undergoes a series of conformational changes. Transport works equally well in either direction and is driven by a chemiosmotic source of energy. Chemiosmotic sources of energy include uniport, symport or antiport [goid 8518] [evidence IEA]