B3GALNT2Beta-1,3-N-acetylgalactosaminyltransferase 2 is a protein that in humans is encoded by the B3GALNT2 gene.FunctionThis gene encodes a member of the glycosyltransferase 31 family. The encoded protein synthesizes GalNAc:beta-1,3GlcNAc, a novel carbohydrate structure, on N- and O-glycans. Alternatively spliced transcript variants that encode different isoforms have been described. .Clinical significanceA mutation in B3GALNT2 is known to cause dystroglycanopathy congenital with brain and eye anomalies A11, which is an autosomal recessive muscular dystrophy.