May modulate transcriptional activation by target nuclear receptors. Can act as transcriptional activator (in vitro) (By similarity).

Involved in starvation-induced autophagy probably by its association with PI3K complex I (PI3KC3-C1). However, effects has been described variably. Involved in the induction of starvation-induced autophagy (By similarity). Stabilzes PI3KC3-C1 assembly and enhances ATG14-linked lipid kinase activity of PIK3C3 (PubMed:24849286). Proposed to negatively regulate basal and starvation-induced autophagy and to inhibit PIK3C3 activity by modulating interactions in PI3KC3-C1 (By similarity). May be involved in autophagosome biogenesis (By similarity). May play a role in neural progenitor cell survival during differentiation (PubMed:18619852).

Involved in the induction of starvation-induced autophagy. Modulates ATG14-linked lipid kinase activity of PIK3C3 and stabilzes PI3K complex I (PI3KC3-C1) assembly (PubMed:24849286). May play a role in neural progenitor cell survival during differentiation (PubMed:18619852).