Complexin-2 (CPLX2)

Negatively regulates the formation of synaptic vesicle clustering at active zone into the presynaptic membrane in postmitotic neurons. Positively regulates a late step in exocytosis of different cytoplasmic vesicles, such as synaptic vesicles and other secretory vesicles.

Also included in mast cell exocytosis (By similarity). .