There are others who can explain it better (I've been getting info on this from another BN member), but it seems to help the inhibition of DHT, promote side cleavage, and aromatase. At 2000mg per day it should also up-regulate growth hormone.
For non-trans benefits (according to a quick Google search); improves skin health and complexion, improves flexibility, detoxifies the body, strengthens hair and nails, accelerates healing, naturally increases energy, anti-inflammatory.