Galnt18 O UDP-N-acetyl-alpha-D-galactosamine:polypeptide N-acetylgalactosaminyltransferase 18 Gene http://identifiers.org/mgd/MGI:2446239 protein coding gene 2900011G21Rik|Galntl4 MGI:2446239 genetic mapping 2900011G21Rik Galntl4 -