GALNT2 (Polypeptide N-Acetylgalactosaminyltransferase 2): GALNT2 is a gene that encodes an enzyme involved in glycosylation, which adds N-acetylgalactosamine to proteins. This modification is essential for proper protein function and cellular communication. Variations in GALNT2 have been linked to lipid metabolism and are associated with blood lipid levels, affecting the risk of cardiovascular diseases.