Involved in cell adhesion. Contributes to integrin activation. When coexpressed with talin, potentiates activation of ITGA2B. Required for normal keratinocyte proliferation. Required for normal polarization of basal keratinocytes in skin, and for normal cell shape. Required for normal adhesion of keratinocytes to fibronectin and laminin, and for normal keratinocyte migration to wound sites (By similarity).
Subcellular locations: Cytoplasm, Cytoskeleton, Cell junction, Focal adhesion, Cell projection, Ruffle membrane
Colocalizes with filamentous actin. Constituent of focal adhesions (By similarity). Localized at the basal aspect of skin keratinocytes, close to the cell membrane (By similarity). Upon TGFB1 treatment, it localizes to membrane ruffles (By similarity).