Protein unc-13 homolog A (UNC13A)

Plays a role in vesicle maturation during exocytosis as a goal of the diacylglycerol second messenger pathway. Involved in neurotransmitter release by acting in synaptic vesicle priming before vesicle fusion and participates in the activity-dependent refilling of readily releasable vesicle pool (RRP).

Essential for synaptic vesicle maturation in most excitatory/glutamatergic but not inhibitory/GABA-mediated synapses (By similarity). Also involved in secretory granule priming in insulin secretion (By similarity).