Myozenins may serve as intracellular binding proteins involved in linking Z line proteins such as alpha-actinin, gamma-filamin, TCAP/telethonin, LDB3/ZASP and localizing calcineurin signaling to the sarcomere. Plays an important role in the modulation of calcineurin signaling. May play a role in myofibrillogenesis. Interacts with ACTN2, LDB3, FLNC, PPP3CA and TCAP. Localized at the Z-line of skeletal muscle. Expressed specifically in skeletal muscle. Not detected in heart. Belongs to the myozenin family.