Reticulophagy receptor required for autophagosomal sequestration of endoplasmic reticulum (ER) membranes during ER stress (Ref.5). Confers resistance to ER stress by promoting the autophagic degradation of the ER (ER-phagy or reticulophagy) (Ref.5). Acts as a bridging molecule to mediate the association between atg8 on the autophagic membrane and the vesicle-associated membrane protein-associated proteins (VAPs) scs2 and scs22 on the ER (Ref.5). May play a role in meiosis (PubMed:16303567). Interacts (via the AIM motif) with atg8 (Ref.5). Interacts (via the FFAT motif) with the vesicle-associated membrane protein-associated protein (VAP) family proteins scs2 and scs22 (Ref.5). Accumulates at the preautophagosomal structure when autophagy occurs. Expression is up-regulated during ER stress by the unfolded protein response (UPR) regulator ire1. The atg8-interaction motif (AIM) is required for the association with atg8. The FFAT motif (AIM) is required for the association with the vesicle-associated membrane protein-associated proteins (VAPs) scs2 and scs22. Does not affect growth neither nitrogen starvation-induced ER-phagy, but abolishes DTT-induced ER-phagy.