Catalysis of the transfer of a solute or solutes from one side of a membrane to the other according to the reaction: sugar(out) + H+(out) = sugar(in) + H+(in) [goid 5351] [evidence IEA]; Catalysis of the transfer of a nucleotide-sugar from one side of the membrane to the other. A nucleotide-sugar is any nucleotide in which the distal phosphoric residue of a nucleoside 5'-diphosphate is in glycosidic linkage with a monosaccharide or monosaccharide derivative [goid 5338] [evidence IEA]; Catalysis of the transfer of a solute or solutes from one side of a membrane to the other according to the reaction: sugar(out) + H+(out) = sugar(in) + H+(in) [goid 5351] [evidence IEA]; Catalysis of the transfer of a nucleotide-sugar from one side of the membrane to the other. A nucleotide-sugar is any nucleotide in which the distal phosphoric residue of a nucleoside 5'-diphosphate is in glycosidic linkage with a monosaccharide or monosaccharide derivative [goid 5338] [evidence IEA]; Catalysis of the transfer of a solute or solutes from one side of a membrane to the other according to the reaction: sugar(out) + H+(out) = sugar(in) + H+(in) [goid 5351] [evidence IEA]; Catalysis of the transfer of a solute or solutes from one side of a membrane to the other according to the reaction: sugar(out) + H+(out) = sugar(in) + H+(in) [goid 5351] [evidence IEA]; Catalysis of the transfer of a nucleotide-sugar from one side of the membrane to the other. A nucleotide-sugar is any nucleotide in which the distal phosphoric residue of a nucleoside 5'-diphosphate is in glycosidic linkage with a monosaccharide or monosaccharide derivative [goid 5338] [evidence IEA]; Catalysis of the transfer of a solute or solutes from one side of a membrane to the other according to the reaction: sugar(out) + H+(out) = sugar(in) + H+(in) [goid 5351] [evidence IEA]; Catalysis of the transfer of a CMP-sialic acid from one side of the membrane to the other. CMP-sialic acid is a substance composed of sialic acid in glycosidic linkage with cytidine monophosphate [goid 5456] [pmid 9644260] [evidence TAS]