Serves as an anchoring site for cell-ECM adhesion proteins and filamin-containing actin filaments. Is implicated in cell shape modulation (spreading) and motility. May participate in the regulation of filamin-mediated cross-linking and stabilization of actin filaments. May also regulate the assembly of filamin-containing signaling complexes that control actin assembly. Promotes dissociation of FLNA from ITGB3 and ITGB7. Promotes activation of integrins and regulates integrin-mediated cell-cell adhesion (By similarity). Interacts with PLEKHC1, FLNA, FLNB and FLNC. Interacts with NKX2-5. Associated with actin stress fiber at cell-ECM focal adhesion sites. Recruited and localized at actin stress fibers and clustered at cell-EMC adhesion sites through interaction with FERMT2.