Enables mannose binding activity. Predicted to be involved in immune response. Predicted to act upstream of or within endocytosis. 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]