Putative function in synaptic vesicle exocytosis by binding to STXBP1, an essential component of the synaptic vesicle exocytotic machinery. May modulate processing of the beta-amyloid precursor protein (APP) and hence formation of beta-APP. Part of a multimeric complex containing STXBP1 and syntaxin-1. Binds to the cytoplasmic domain of amyloid protein beta, and to the nuclear factor NF-kappa-B/p65 via its PDZ domain. Interacts with the N-terminal domain of APBA2BP. Brain. Note: This description may include information from UniProtKB.
Alt. Names/Synonyms: Adapter protein X11beta; amyloid beta (A4) precursor protein-binding, family A, member 2; amyloid beta (A4) precursor protein-binding, family A, member 2 (X11-like); Amyloid beta A4 precursor protein-binding family A member 2; APBA2; D15S1518E; HsT16821; LIN-10; MGC99508; MGC:14091; Mint-2; MINT2; Neuron-specific X11L protein; Neuronal Munc18-1-interacting protein 2; X11-like protein; X11L