Predicted to enable lactosylceramide alpha-2,3-sialyltransferase activity. Predicted to be involved in protein glycosylation. Predicted to be located in Golgi apparatus and membrane. Predicted to be integral component of membrane. Is expressed in several structures, including alimentary system; brain; liver; spleen; and testis. Human ortholog(s) of this gene implicated in salt and pepper syndrome. Orthologous to human ST3GAL5 (ST3 beta-galactoside alpha-2,3-sialyltransferase 5). [provided by Alliance of Genome Resources, Apr 2022]