The protein encoded by this gene is structurally similar to G protein-coupled receptors and is highly expressed in endothelial cells. It binds the ligand sphingosine-1-phosphate with high affinity and high specificity, and suggested to be involved in the processes that regulate the differentiation of endothelial cells. Activation of this receptor induces cell-cell adhesion. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Mar 2016],CD363, CHEDG1, D1S3362, ECGF1, EDG-1, EDG1, S1P1,Angiogenesis,Apoptosis,Cardiovascular,CDs,Cell Adhesion,Cell Adhesion_Cell Adhesion Molecules,Cell Biology & Developmental Biology,Cytoskeleton,G protein signaling,G protein signaling_G-Protein-Coupled Receptors(GPCR),Immunology & Inflammation,Signal Transduction,S1P1/EDG1