The function of ENSG00000187391 (MAGI2, membrane associated guanylate kinase, WW and PDZ domain containing 2) is as follows. Seems to act as a scaffold molecule at synaptic junctions by assembling neurotransmitter receptors and cell adhesion proteins (By similarity). Plays a role in nerve growth factor (NGF)-induced recruitment of RAPGEF2 to late endosomes and neurite outgrowth (By similarity). May play a role in regulating activin-mediated signaling in neuronal cells (By similarity). Enhances the ability of PTEN to suppress AKT1 activation (PubMed:10760291). Plays a role in receptor- mediated clathrin-dependent endocytosis which is required for ciliogenesis (By similarity). {ECO:0000250|UniProtKB:O88382, ECO:0000250|UniProtKB:Q9WVQ1, ECO:0000269|PubMed:10760291}.