Predicted to enable phosphatidylinositol phosphate binding activity. Involved in Kupffer's vesicle development; cilium assembly; and left/right axis specification. Acts upstream of or within heart looping. Predicted to be located in cytoskeleton and endosome membrane. Predicted to be active in endosome. Predicted to colocalize with centrosome. Human ortholog(s) of this gene implicated in autosomal recessive osteopetrosis 8. Orthologous to human SNX10 (sorting nexin 10).