Ca(2+)-dependent receptor for myeloid cells that binds to carbohydrates on neutrophils and monocytes. Mediates the interaction of activated endothelial cells or platelets with leukocytes. The ligand recognized is sialyl-Lewis X. Mediates rapid rolling of leukocyte rolling over vascular surfaces during the initial steps in inflammation through interaction with SELPLG. Interacts with SNX17. Interacts with SELPLG/PSGL1 and PODXL2 and mediates neutrophil adhesion and leukocyte rolling. This interaction requires the sialyl-Lewis X epitope of SELPLG and PODXL2, and specific tyrosine sulfation on SELPLG. Not detected in the absence of exposure to lipopolysaccharide (LPS). Detected only after exposure to lipopolysaccharide (LPS) in the tissues examined: spleen, lung, brain, liver, heart, kidney, thymus and small intestine. By exposure to bacterial lipopolysaccharide (LPS). Belongs to the selectin/LECAM family.