Enables the transfer of a nucleotide-sugar from one side of a 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.
Reactome:R-HSA-744231 "SLC35D2 exchanges UDP-GlcNAc for UMP"
;
Reactome:R-HSA-9792608 "SLC35D2 exchanges UDP-D-glucose for UMP"
;
reactome:R-HSA-744230 "SLC35D2 mediates the antiport of GDP-mannose in exchange for GMP"