polypeptide N-acetylgalactosaminyltransferase activity
polypeptide n-acetylgalactosaminyltransferase activity
UDP-N-acetylgalactosamine:polypeptide N-acetylgalactosaminyltransferase activity
udp-n-acetylgalactosamine:polypeptide n-acetylgalactosaminyltransferase activity