Saccharide- and LPS-binding protein with possible roles in pathogen sensing and endotoxin neutralization. Ligand-binding specificity relates to the length of the oligosaccharides, with preference for chitotetraose (in vitro). Interacts with STAB1. Expressed in cells of monocytic, T, B and epithelial origin. Up-regulated by IL4/interleukin-4 and dexamethasone in the macrophages. Up-regulated by glucocorticoid. Belongs to the glycosyl hydrolase 18 family.