Glycoprotein-Fucosylgalactoside Alpha-N-Acetylgalactosaminyltransferase Activity

Fucosylgalactose Alpha-N-Acetylgalactosaminyltransferase Activity

Catalysis of the reaction: UDP-N-acetyl-D-galactosamine + glycoprotein-alpha-L-fucosyl-(1,2)-D-galactose = UDP + glycoprotein-N-acetyl-alpha-D-galactosaminyl-(1,3)-(alpha-L-fucosyl-(1,2))-D-galactose.