Anti-GALNTL5 antibodies are used in the immunodetection of the protein polypeptide N-acetylgalactosaminyltransferase like 5. In humans, the canonical protein has a reported length of 443 amino acid residues and a mass of 51.4 kDa. Its subcellular localization is in the endosome. Up to 2 different isoforms have been reported for this protein. It is reported to be mainly expressed in the testis. A member of the Glycosyltransferase 2 protein family, GALNTL5 is a suspected inactive glycosyltransferase required during spermatid development. Synonyms for this target antigen include UDP-GalNAc:polypeptide N-acetylgalactosaminyltransferase 15, UDP-N-acetyl-alpha-D-galactosamine:polypeptide N-acetylgalactosaminyltransferase-like 5, galNAc-T15, and inactive polypeptide N-acetylgalactosaminyltransferase-like protein 5. GALNTL5 gene orthologs have been reported in the mouse, rat, bovine and chimpanzee species. Some GALNTL5 antibodies may have been used in research and have associated citations. Western Blot is a widely used application for these antibodies. ELISA and Immunohistochemistry are also common applications.