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