NN’-diacetylbacillosaminyl-diphospho-undecaprenol alpha-13-N-acetylgalactosaminyltransferase (EC 2.4.1.290 PglA) is an enzyme with system name UDP-N-acetyl-alpha-D-galactosamine:NN’-diacetyl-alpha-D-bacillosaminyl-diphospho-tritransheptacis-undecaprenol 3-alpha-N-acetyl-D-galactosaminyltransferase.