Calcium-independent receptor of high affinity for alpha-latrotoxin, an excitatory neurotoxin present in black widow spider venom which triggers massive exocytosis from neurons and neuroendocrine cells . Receptor for TENM2 that mediates heterophilic synaptic cell-cell contact and postsynaptic specialization. Receptor probably implicated in the regulation of exocytosis (By similarity).
Subcellular locations: Cell membrane, Cell projection, Axon, Cell projection, Growth cone, Synapse, Presynaptic cell membrane, Synapse, Synaptosome
Colocalizes with TENM2 on the cell surface, across intercellular junctions and on nerve terminals near synaptic clefts.