lactosylceramide 4-alpha-galactosyltransferase activity (Q21209282)
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.
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aliases GO:0050512
 Gal-beta-(1,4)-Glc-beta-1-Cer alpha-(1,4)-galactosyltransferase activity
 Gal-beta-1,4-Glc-beta-1-Cer alpha-1,4-galactosyltransferase activity
 lactosylceramide 4-a-galactosyltransferase activity
 UDP-galactose:lactosylceramide 4II-alpha-D-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.

External Links
(P686) GO:0050512