Anti-Sytl3 antibodies are used in the immunodetection of the protein synaptotagmin like 3. In humans, the canonical protein has a reported length of 610 amino acid residues and a mass of 68.6 kDa. Its subcellular localization is in the membrane. Alternative splicing is reported to yield 2 different isoforms for this protein. SYTL3 is believed to act as Rab effector protein and play a role in vesicle trafficking. Synonyms for this target antigen include synaptotagmin-like protein 3 and exophilin-6.