Involved in autophagy (PubMed:20550938, PubMed:24374177). Thought to act in autophagasome and omegasome formation (PubMed:20550938). Forms a reticular pattern throughout the cytoplasm. Expressed in pharyngeal and body wall muscles and intestine cells. Ubiquitously expressed during embrygogenesis. Early autophagic structures and lgg-1 puncta form an irregular shape and clump together (PubMed:20550938). RNAi-mediated knockdown results in increased lgg-2-positive autophagosomes following fertilization and at later embryonic stages (PubMed:24374177). Belongs to the EI24 family.