Anti-STARD5 antibodies are used in the immunodetection of the protein StAR related lipid transfer domain containing 5. In humans, the canonical protein has a reported length of 213 amino acid residues and a mass of 23.8 kDa. Alternative splicing is reported to yield 2 different isoforms for this protein. STARD5 is suspected to be involved in the intracellular transport of sterols or other lipids. Synonyms for this target antigen include START domain containing 5, START domain-containing protein 5, StAR-related lipid transfer (START) domain containing 5, and stAR-related lipid transfer protein 5.