May regulate secretion and presynaptic differentiation through inhibition of the activity of N-type voltage-gated calcium channel. May activate the MAP kinase JNK (By similarity). Plays a role in neurite outgrowth (By similarity). During dendritic spine formation can bidirectionally induce pre- and post-synaptic differentiation of neurons by trans-synaptically binding to PTPRD (By similarity).
Subcellular locations: Cell membrane, Cytoplasm, Cell projection, Axon, Cell projection, Dendrite
May localize to the cell body and growth cones of dendrite-like processes.