Binds mannose, N-acetylglucosamine (GlcNAc) and fucose, but not galactose, in a Ca(2+)-dependent manner, in vitro. . (Microbial infection) Acts as a receptor for Japanese encephalitis virus. . (Microbial infection) Acts as a receptor for Ebolavirus. . (Microbial infection) Acts as a receptor for SARS-CoV. . (Microbial infection) Acts as a receptor for Lassa virus and Lymphocytic choriomeningitis virus glycoprotein (PubMed:22156524, PubMed:22673088). {ECO:0000269|PubMed:22156524, ECO:0000269|PubMed:22673088}. This is the function of ENSG00000182566 (CLEC4G, C-type lectin domain family 4 member G).