The function of SLITRK4 (SLIT and NTRK like family member 4, ENSG00000179542) is as follows. It is involved in synaptogenesis and promotes synapse differentiation (PubMed:27812321). Suppresses neurite outgrowth (By similarity). {ECO:0000250|UniProtKB:Q810B8, ECO:0000269|PubMed:27812321}.