2-hydroxyacylsphingosine 1-beta-galactosyltransferase activity
2-hydroxyacylsphingosine 1-beta-galactosyltransferase activity
UDP-galactose-GM2 ganglioside galactosyltransferase activity
udp-galactose-gm2 ganglioside galactosyltransferase activity