Potential coactivator of the androgen receptor. Mediates STAT3 degradation. May play critical roles in two RAB6-dependent retrograde transport processes: one from endosomes to the Golgi and the other from the Golgi to the ER. This protein binds the HIV-1 TATA element and inhibits transcriptional activation by the TATA-binding protein (TBP).
Subcellular locations: Cytoplasm, Nucleus, Golgi apparatus membrane
Concentrated at the budding structures localized at the tips of cisternae.