BAIAP2L1 (Brain-specific angiogenesis inhibitor 1-associated protein 2-like 1) is a gene that encodes a protein involved in cellular structure and signaling. As a member of the I-BAR domain-containing protein family, BAIAP2L1 plays a key role in actin cytoskeleton remodeling, membrane shaping, and cell movement. Its I-BAR domain enables interaction with actin filaments and membrane phospholipids, contributing to the formation of dynamic structures like filopodia and lamellipodia.