Is predicted to encode a protein with the following domains: WD40/YVTN repeat-like-containing domain superfamily; WD repeat domain phosphoinositide-interacting protein 1; WD40-repeat-containing domain superfamily; and WD40 repeat. Is an ortholog of C. elegans atg-18. In C. elegans, atg-18 is involved in several processes, including determination of adult lifespan; gamete generation; and xenophagy.