Anti-ALG13 UDP-N-acetylglucosaminyltransferase subunit antibodies are used for the immunodetection of the protein encoded by the ALG13 gene. In humans, the canonical protein has a reported length of 1137 amino acid residues and a mass of 126.1 kDa. Its subcellular localization is in the ER. Alternative splicing is reported to yield 4 different isoforms for this protein. A member of the Glycosyltransferase 28 protein family, it is known to be involved with proteolysis. The gene encoding this protein is implicated in Developmental and epileptic encephalopathy. Other names for this target antigen include N-acetylglucosaminyldiphosphodolichol N-acetylglucosaminyltransferase, UDP-N-acetylglucosamine transferase subunit ALG13 homolog, and putative bifunctional UDP-N-acetylglucosamine transferase and deubiquitinase ALG13. Gene orthologs have been identified in the mouse, frog, chimpanzee and chicken species.