Purity > 90% as determined by SDS-PAGE. MW: 65.9kDa. Full length of Isoform 2: 1-323aa. N-terminal 6xHis-GST-tagged. Homo sapiens (Human). Binds galactosides. Has high affinity for the Forssman pentasaccharide. May play a role in thymocyte-epithelial interactions relevant to the biology of the thymus. Inhibits cell proliferation. It is a ligand for HAVCR2/TIM3. Induces T-helper type 1 lymphocyte (Th1) death. Isoform Short acts as an eosinophil choattractant.