DAAM1 (Dishevelled Associated Activator of Morphogenesis 1) is a formin family protein that regulates actin cytoskeleton dynamics through multiple cellular mechanisms. DAAM1 functions as a scaffolding protein that mediates Wnt signaling by binding to disheveled (Dvl) and Rho, facilitating Dvl-Rho complex formation and directing actin filament nucleation and elongation 1. The protein plays crucial roles in cellular morphogenesis, including filopodia formation and phagocytic processes, where it localizes to F-actin-rich structures and coiling pseudopods 1. A conserved neuronal microexon in DAAM1 modulates its FH2 domain function, affecting actin polymerization and regulating neuritogenesis, dendritic spine formation, and memory processes through RHOA/ROCK signaling pathways 2. DAAM1 is essential for male fertility, with altered expression and localization observed in testicular disorders and abnormal spermatogenesis 34. In cancer contexts, DAAM1 functions as an oncogene, promoting tumor progression through WNT11-FZD7-DAAM1 signaling in melanoma 5 and regulating PD-L1 expression via JAK1/STAT1 pathways in pancreatic cancer 6. The protein's genetic variants are associated with structural brain connectivity, particularly white matter organization and myelination processes 7.