Probably plays a role in the regulation of cell adhesion and cytoskeleton organization. Interacts with integrin-linked protein kinase and actin. Constituent of focal adhesions. Expressed predominantly in lymphoid organs, including spleen, thymus, lymph node, bone marrow and peripheral blood leukocytes and moderately in the digestive tract, including stomach, duodenum, jejunum, ileum, ileocecum and appendix, as well as in lung and liver. Also expressed in tumors, but at a lower level than in the corresponding normal tissues. Belongs to the parvin family.