Enables identical protein binding activity and mannose binding activity. Acts upstream of or within defense response to bacterium; endocytosis; and positive regulation of cytokine production. Predicted to be located in plasma membrane. Predicted to be integral component of membrane. Predicted to be active in external side of plasma membrane. 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]