Anti-VPS51 subunit of GARP complex antibodies are used for the immunodetection of the protein encoded by the VPS51 gene. In humans, the canonical protein has a reported length of 782 amino acid residues and a mass of 86 kDa. Its subcellular localization is in the Golgi. Alternative splicing is reported to yield 2 different isoforms for this protein. A member of the VPS51 protein family, it is known to act as component of the GARP complex that is involved in retrograde transport from early and late endosomes to the trans-Golgi network (TGN). The gene encoding this protein is implicated in Pontocerebellar hypoplasia. Other names for this target antigen include ANG3, C11orf3, FFR, PCH13, and ANG2. Gene orthologs have been identified in the mouse, rat, bovine, frog, zebrafish, chimpanzee and chicken species.