Enables carbohydrate derivative binding activity and mannose binding activity. Predicted to be involved in immune response. Predicted to act upstream of or within regulation of T cell proliferation. Located in cell surface. Human ortholog(s) of this gene implicated in Coronavirus infectious disease; aspergillosis; dengue disease (multiple); human immunodeficiency virus infectious disease (multiple); and tuberculosis (multiple). Orthologous to human CD209 (CD209 molecule). [provided by Alliance of Genome Resources, Apr 2022]