label: lactosylceramide 4-alpha-galactosyltransferase activity
label_lc: lactosylceramide 4-alpha-galactosyltransferase activity
description: "Catalysis of the reaction: beta-D-galactosyl-(1,4)-D-glucosylceramide + UDP-galactose = alpha-D-galactosyl-(1,4)-beta-D-galactosyl-(1,4)-D-glucosylceramide + UDP."