Is predicted to encode a protein with the following domains: Kelch-type beta propeller; Galactose oxidase/kelch, beta-propeller; Kelch motif; Kelch repeat type 1; BTB/POZ domain; Kelch-like protein 17/20; BTB/Kelch-associated; and SKP1/BTB/POZ domain superfamily. Is an ortholog of C. elegans ivns-1.