Calcium-dependent lectin that mediates cell adhesion by binding to glycoproteins on neighboring cells. Mediates the adherence of lymphocytes to endothelial cells of high endothelial venules in peripheral lymph nodes (PubMed:1693096). Promotes initial tethering and rolling of leukocytes in endothelia (By similarity). Interaction with SELPLG/PSGL1 and PODXL2 is required for promoting recruitment and rolling of leukocytes. This interaction is dependent on the sialyl Lewis X glycan modification of SELPLG and PODXL2, and tyrosine sulfation modifications of SELPLG. Sulfation on 'Tyr-51' of SELPLG is important for L-selectin binding. Predominantly expressed in lymphoid tissue. N-glycosylated. Belongs to the selectin/LECAM family. L-selectin