Predicted to enable acetylgalactosaminyltransferase activity. Involved in protein glycosylation. Acts upstream of or within muscle cell development. Predicted to be located in endoplasmic reticulum. Predicted to be active in Golgi membrane. Human ortholog(s) of this gene implicated in congenital muscular dystrophy-dystroglycanopathy type A11. Orthologous to human B3GALNT2 (beta-1,3-N-acetylgalactosaminyltransferase 2).