Mediates the binding and degradation of acetylated low density lipoprotein (Ac-LDL). Mediates heterophilic interactions, suggesting a function as adhesion protein (By similarity). Plays a role in the regulation of neurite-like outgrowth. Heterophilic interaction with SREC2 via its extracellular domain. The heterophilic interaction is suppressed by the presence of ligand such as Ac-LDL (By similarity). Interacts with AVIL; the interaction occurs in embryonic dorsal root ganglions at 18 dpc and induces neurite-like outgrowth. Expressed weakly in brain, spinal cord and dorsal root ganglions. Expressed strongly in brain, spinal cord and dorsal root ganglions at 18 dpc. The cytoplasmic domain is necessary for the regulation of neurite-like outgrowth. Extended N-terminus.