Predicted to enable glycoprotein-N-acetylgalactosamine 3-beta-galactosyltransferase activity and nucleotide binding activity. Predicted to be involved in protein glycosylation. Predicted to be located in membrane. Orthologous to human C1GALT1 (core 1 synthase, glycoprotein-N-acetylgalactosamine 3-beta-galactosyltransferase 1).