Muted homolog, also known as MUTED, is involved in the development of lysosome related organelles, such as melanosomes and platelet dense granules. MUTED interacts with pallidin, dystrobrevin binding protein 1 and CNO/cappuccino. It is part of the biogenesis of lysosome related organelles complex 1 (BLOC1). Also, MUTED is ubiquitously expressed with higher levels in brain, bone marrow, kidney, and liver and lower levels in skeletal muscle.