an N-acyl-sphingoid base + UDP-alpha-D-galactose <=> a D-galactosylceramide + UDP + H(+)
an n-acyl-sphingoid base + udp-alpha-d-galactose <=> a d-galactosylceramide + udp + h(+)
an N-acyl-sphingoid base + UDP-alpha-D-galactose <=> a D-galactosylceramide + UDP + H(+)
an n-acyl-sphingoid base + udp-alpha-d-galactose <=> a d-galactosylceramide + udp + h(+)