Syntaxin-binding protein 2 (STXBP2)

Involved in intracellular vesicle trafficking and vesicle fusion with membranes. Contributes to the granule exocytosis machinery through interaction with soluble N- ethylmaleimide-sensitive factor attachment protein receptor (SNARE) proteins that regulate membrane fusion.

Regulates cytotoxic granule exocytosis in natural killer (NK) cells. .