label: N-acetyllactosaminide 3-alpha-galactosyltransferase activity
label_lc: n-acetyllactosaminide 3-alpha-galactosyltransferase activity
description: "Catalysis of the reaction: beta-D-galactosyl-(1,4)-beta-N-acetyl-D-glucosaminyl-R + UDP-galactose = alpha-D-galactosyl-(1,3)-beta-D-galactosyl-(1,4)-beta-N-acetyl-D-glucosaminyl-R + UDP."