Putative RNA-binding protein. May be involved in regulating gene expression during embryonic development. Interacts (via KH domains) with ANKS6 (via SAM domain) in an RNA-dependent manner. Interacts with ANKS3 (PubMed:25671767). In the adult, predominantly expressed in heart and kidney. In 8 week old mice, expressed in growing primary oocytes and in the stromal cells of the theca. In the developing embryo, first detected at the rostral tip of the primitive streak, Hensen's node, at the late streak stage. At the late headfold stage, expression demarcates the layer of the node from which definitive endoderm and midline mesoderm arises. At 6-8 somite stage observed in the definitive endoderm. Strong expression is detected in the caudal intestinal portal. At 12-15 somite stage is still present in the hindgut, but transient expression is also seen in tissues of neural and mesodermal origins. At 13 dpc present around all sites of cartilage formation, such as cervical vertebral bodies, ribs and Merckel's cartilage. Additionally, expressed in the derivatives of the pleuroperitoneal membrane, the diaphragm and the pericardium, as well as the mesenchyme of the developing lung. Expressed in both the mesonephros and metanephros. Belongs to the BicC family.