Enables immunoglobulin receptor binding activity. Involved in antifungal innate immune response; positive regulation of I-kappaB kinase/NF-kappaB signaling; and positive regulation of myeloid dendritic cell activation. Acts upstream of or within several processes, including Fc-gamma receptor signaling pathway; T cell differentiation involved in immune response; and defense response to other organism. Located in plasma membrane. Is expressed in bone marrow; lung; lymph node; and spleen. Orthologous to human CLEC4D (C-type lectin domain family 4 member D). [provided by Alliance of Genome Resources, Apr 2022]