label: a beta-D-glucosyl-(1<->1')-N-acylsphing-4-enine + UDP + H(+) => an N-acylsphing-4-enine + UDP-alpha-D-glucose
label_lc: a beta-d-glucosyl-(1<->1')-n-acylsphing-4-enine + udp + h(+) => an n-acylsphing-4-enine + udp-alpha-d-glucose