Predicted to enable hexosyltransferase activity. Predicted to be involved in protein O-linked glycosylation. Predicted to be located in membrane. Is an ortholog of human B3GALT4 (beta-1,3-galactosyltransferase 4) and B3GNT5 (UDP-GlcNAc:betaGal beta-1,3-N-acetylglucosaminyltransferase 5).