Enables the transfer of a solute or solutes from one side of a membrane to the other according to the reaction: sialate(out) + H+(out) = sialate(in) + H+(in).
Synonyms:
exact_synonym:
sialic acid:hydrogen symporter activity
related_synonym:
sialic acid permease activity
xref:
MetaCyc:TRANS-RXN-25; RHEA:28987; Reactome:R-HSA-5624239 "Defective SLC17A5 does not cotransport Neu5Ac, H+ from lysosomal lumen to cytosol"; reactome:R-HSA-428585 "SLC17A5 cotransports Neu5Ac, H+ from lysosomal lumen to cytosol"