Involved in gonadal development. Interacts with LDB1 and LDB2. Expressed in the proliferating cells of the coelomic epithelium of male and female gonads at 12 dpc. In female, expressed in the whole gonadal primordium at 13.5 dpc; in the surface epithelium and in the ovigerous cords at 15.5 dpc. In male, expressed at surface cells of the gonads at 13.5 dpc; in mesenchymal cells outside testicular cords at 18.5 dpc.