Lectin that plays a role in innate immunity, apoptosis and embryogenesis. Calcium-dependent lectin that binds self and non-self glycoproteins presenting high mannose oligosaccharides with at least one terminal alpha-1,2-linked mannose epitope. Primarily recognizes the terminal disaccharide of the glycan. Also recognizes a subset of fucosylated glycans and lipopolysaccharides. Plays a role in innate immunity through its ability to bind non-self sugars presented by microorganisms and to activate the complement through the recruitment of MAPS1. Also plays a role in apoptosis through its ability to bind in a calcium-independent manner the DNA present at the surface of apoptotic cells and to activate the complement in response to this binding. Finally, plays a role in development, probably serving as a guidance cue during the migration of neural crest cells and other cell types during embryogenesis. Homotrimer; disulfide-linked. Interacts with MASP1; probably triggers the lectin pathway of complement. Expressed in the tongue, crop, crop mucosa, coprodeum, urodeum, proctoderm, colon, lung, ovary, uterus, testis, vitelline membrane, kidney, ureter, liver and skin. Belongs to the COLEC10/COLEC11 family.