Lectin that binds chitooligosaccharides and other glycans with high affinity, but not heparin. Has no chitinase activity. Highest expression in chondrocytes, followed by synoviocytes, lung and heart. Not detected in spleen, pancreas, and liver. May also be expressed in developing brain and placenta. Belongs to the glycosyl hydrolase 18 family. Lacks the conserved sequence motif DxxDxDxE that is essential for the catalytic activity of chitinases of the glycosyl hydrolase 18 family, and therefore has no chitinase activity. Extended N-terminus. Truncated N-terminus.