Is predicted to encode a protein with the following domains: WD40/YVTN repeat-like-containing domain superfamily; Anaphase-promoting complex subunit 4, WD40 domain; Transmembrane amino acid transporter protein; Anaphase-promoting complex, cyclosome, subunit 4; Anaphase-promoting complex subunit 4 WD40 domain; Amino acid transporter, transmembrane domain; and Anaphase-promoting complex subunit 4 long domain. Is an ortholog of C. elegans skat-1.