The protein encoded by this gene belongs to the family of synaptotagmin-like proteins (SLPs). SLPs are peripheral membrane proteins that interact with RAB27A protein, and play a role in vesicular trafficking. Unlike, SLPs 1 and 2, this protein binds phospholipids in the presence of calcium ions. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jun 2011].