Acts as an adapter for the myotubularin-related phosphatases ( ). Regulates phosphatase MTM1 protein stability and possibly its intracellular location . By stabilizing MTM1 protein levels, required for skeletal muscle maintenance but not for myogenesis (By similarity).
Subcellular locations: Cytoplasm, Sarcoplasmic reticulum, Cytoplasm, Myofibril, Sarcomere
Localizes to punctate vesicles when associated with MTM1 . Localizes to triads, a structure formed by a T tubule and two sarcoplasmic reticulum terminal cisterna (By similarity). In skeletal muscles, co-localizes with MTM1 in the sarcomere (By similarity). Partially localizes to the sarcoplasmic reticulum in skeletal muscles (By similarity).
Expressed in skeletal muscles (at protein level) . Ubiquitous with prominent expression in brain, heart, kidney, placenta, and lung .