Mediates the binding and degradation of acetylated low density lipoprotein (Ac-LDL). Mediates heterophilic interactions, suggesting a function as adhesion protein. Plays a role in the regulation of neurite-like outgrowth (By similarity). Heterophilic interaction with SREC2 via its extracellular domain. The heterophilic interaction is suppressed by the presence of ligand such as Ac-LDL. Interacts with AVIL (By similarity). Endothelial cells. May be produced at very low levels due to a premature stop codon in the mRNA, leading to nonsense-mediated mRNA decay.