Plays a role in sarcomere organization and in smooth muscle cell contraction. Required for normal development of the embryonic cardiovascular system, and for normal septation of the heart outflow tract. Plays a role in sprouting angiogenesis and is required for normal adhesion of vascular smooth muscle cells to endothelial cells during blood vessel development (By similarity). Plays a role in the reorganization of the actin cytoskeleton, formation of lamellipodia and ciliogenesis. Plays a role in the establishment of cell polarity, cell adhesion, cell spreading, and directed cell migration. Interacts with TGFB1I1 (PubMed:11134073). Interacts with LIMS1 (via LD motifs) (By similarity). Interacts with ARHGAP31 (By similarity). Interacts with the actin cytoskeleton (PubMed:11134073). Interacts (via C-terminus) with ILK (By similarity). Interacts (via C-terminus) with TESK1 (via C-terminus); the interaction inhibits TESK1 kinase activity (PubMed:15817463). Interacts with PXN/PAXILLIN (via LD motif 4) (PubMed:11134073). Constituent of focal adhesions. Widely expressed. Belongs to the parvin family.