Functions as an endocytic receptor on a small subset of myeloid cells specialized for the uptake and processing of material from dead cells. Recognizes filamentous form of actin in association with particular actin-binding domains of cytoskeletal proteins, including spectrin, exposed when cell membranes are damaged, and mediate the cross-presentation of dead-cell associated antigens in a Syk-dependent manner (By similarity). Homodimer. High expression in the spleen, moderate to low levels in several other tissues and cell types, but no detectable expression in skin dendritic cells or CD4(+) T-cells. N-glycosylated.