Term Name:	alpha-1,4-N-acetylgalactosaminyltransferase activity
Synonyms:	alpha-1,4-GalNAc transferase activity
Definition:	Catalysis of the reaction: an N-acetyl-beta-D-galactosaminyl derivative + UDP-N-acetyl-alpha-D-galactosamine = an N-acetyl-alpha-D-galactosaminyl-(1->4)-N-acetyl-beta-D-galactosaminyl derivative + UDP + H+.
Ontology:	GO: Molecular Function [GO:0035248]    QuickGO    AmiGO