Predicted to enable galactosyltransferase activity. Predicted to be involved in glycosylation. Predicted to act upstream of or within carbohydrate metabolic process. Predicted to be located in Golgi cisterna membrane and Golgi membrane. Predicted to be active in Golgi apparatus. Is expressed in EVL; notochord; periderm; and yolk syncytial layer. Orthologous to human B4GALT4 (beta-1,4-galactosyltransferase 4).