There is no female circumcision in Shia Islam, which is the Islam of the Prophet Muhammad (SAWA) and his Holy Progeny Ahlul Bayt (AS).
In some African societies, they cut a part of the private part of the female , which is according to their culture. It is Haraam ( forbidden) do that when it causes harm to the female.
Circumcision is only for males and it is called in Arabic Khitaan. There is no Khitaan for females at all. All we have in our books for females is Khafdh which is not circumcision at all. Khafdh is not recommended in religion but it is a cultural practice among some societies. Khafdh is removing part of the skin on female private part.