Predicted to enable acetylgalactosaminyltransferase activity. Predicted to be involved in protein O-linked glycosylation. Predicted to act upstream of or within UDP-N-acetylgalactosamine metabolic process. Predicted to be located in endoplasmic reticulum. Predicted to be active in Golgi membrane. Is expressed in submandibular gland primordium. Human ortholog(s) of this gene implicated in congenital muscular dystrophy-dystroglycanopathy type A11. Orthologous to human B3GALNT2 (beta-1,3-N-acetylgalactosaminyltransferase 2). [provided by Alliance of Genome Resources, Apr 2022]