Phosphatidylserine receptor which enhances the engulfment of apoptotic cells (PubMed:17960134). Also mediates the binding and engulfment of Gram-negative bacteria (PubMed:21245295, PubMed:26838550, PubMed:26838550). Stimulates production of reactive oxygen species by macrophages in response to Gram-negative bacteria, resulting in enhanced microbicidal macrophage activity (By similarity). In the gastric mucosa, required for recognition and engulfment of apoptotic gastric epithelial cells (By similarity). Promotes myoblast fusion (PubMed:23615608). Activates the Rho pathway in a G-protein-dependent manner (By similarity). Inhibits MDM2-mediated ubiquitination and degradation of DLG4/PSD95, promoting DLG4 stability and regulating synaptic plasticity (PubMed:25751059). Required for the formation of dendritic spines by ensuring the correct localization of PARD3 and TIAM1 (By similarity). Potent inhibitor of angiogenesis in brain and may play a significant role as a mediator of the p53/TP53 signal in suppression of glioblastoma (By similarity). Inhibits angiogenesis in a CD36-dependent manner. Inhibits angiogenesis. Interacts with ELMO1 and DOCK1 (PubMed:17960134). When bound to ELMO1 and DOCK1, acts as a module to promote apoptotic cell engulfment (PubMed:17960134). Interacts with MDM2; the interaction results in inhibition of MDM2-mediated ubiquitination and degradation of DLG4/PSD95 (PubMed:25751059). Interacts with PARD3 and TIAM1; the interaction is required for correct dendritic localization of PARD3 and TIAM1 and for dendritic spine formation (By similarity). Interacts with MAGI1, MAGI3 and BAIAP2 (By similarity). Interacts with PHYHIP (PubMed:11245925). Interacts with DLG4 (via PDZ domain) (By similarity). Vasculostatin-120: Interacts with CD36 (By similarity). Vasculostatin-120: Interacts with ARRB2 (By similarity). Interacts with BAIAP3; this interaction is direct (By similarity). In brain, widespread expression in all neuropil-rich zones including spinal cord gray matter, cerebellar molecular layer, cerebral cortex, thalamic nuclei and basal ganglia with no expression in white matter (at protein level) (PubMed:20888903). In the cerebellar molecular layer, highly expressed in interneuron processes whereas Purkinje cells and their dendrites show weaker expression (at protein level) (PubMed:20888903). In the olfactory bulb, highly expressed in glomeruli (at protein level) (PubMed:20888903). In the retina, highly concentrated in the outer and inner plexiform layers (at protein level) (PubMed:20888903). Expressed in brain (PubMed:11245925). Enriched in hippocampus and cortex (PubMed:23595754). Also detected in other tissues including bone marrow and spleen (PubMed:17960134). The TSP type-1 repeats in the extracellular domain mediate binding to phosphatidylserine (PubMed:17960134). They are also required for bacterial recognition and binding to bacterial outer membrane lipopolysaccharide (PubMed:21245295). Proteolytically cleaved to produce vasculostatin-40 and vasculostatin-120. Vasculostatin-40 is the major form and is produced through proteolytic cleavage by MMP14 between residues 321 and 329 with cleavage likely to be between Ser-326 and Leu-327. Ubiquitinated. Viable and fertile with normal brain anatomy but mutants display severe deficits in hippocampus-dependent spatial learning and memory that are accompanied by enhanced long-term potentiation, impaired long-term depression, a thinning of the postsynaptic density at hippocampal synapses, reduced protein levels of Dlg4 and increased Dlg4 polyubiquitination (PubMed:25751059). Smaller myofibers than wild-type animals and impaired muscle regeneration after injury (PubMed:23615608). Impaired bacterial clearance following E.coli infection (PubMed:26838550). RNAi-mediated knockdown in embryos results in greatly reduced dendritic spine density and small but significant increases in spine length and decreases in spine diameter (PubMed:23595754). Observed very weakly in the kidney, skeletal muscle, skin, stomach, thymus and brain from embryonic day 18. By neonatal day 1, the expression is targeted only to the brain. Belongs to the G-protein coupled receptor 2 family. LN-TM7 subfamily.