Required for the correct formation of lens intermediate filaments as part of a complex composed of BFSP1, BFSP2 and CRYAA . Involved in altering the calcium regulation of MIP water permeability .
Subcellular locations: Cell membrane, Cytoplasm, Cytoplasm, Cytoskeleton, Cytoplasm, Cell cortex
Expressed in the cortex and nucleus of the retina lens (at protein level).