MGI:2443629Mice homozygous for a conditional allele activated in Schwann cells exhibit transient acceleration of postnatal myelination, reduced demyelination in culture, and reduced myelin degradation and increases remyelination following nerve axotomy or sciatic nerve crush. Mice homozygous for a null allele exhibit incomplete prenatal lethality, decreased osteoclast cell number, decreased angiogenesis, increased long bone epiphyseal plate size, and short long bones.