Equality and Apostasy

a·pos·ta·sy

əˈpästəsē/

noun

1. the abandonment or renunciation of a religious or political belief.

Kate Kelly is facing Mormon church discipline for apostasy. The person in the Mormon church who apparently is leading this is William Clayton of the Quorum of the Seventy in the Mormon church.  Here is a quote from a news source, "Clayton reportedly said that public advocacy of ordination is an act of apostasy."  apostasy

What I find interesting, is for Kate to be accused of apostasy for espousing a belief that women should be ordained to the priesthood, there needs to first be a doctrine against women having the priesthood.

I have read the Book of Mormon and the Doctrine and Covenants, which makes up the doctrines of the Mormon church. In neither book does it state that women cannot seek equality or ordination to the priesthood. I would like to know what the movement, Ordain Women are apostatizing against. 

Where in Mormon church doctrine does is specifically state that women cannot be ordained to the priesthood? 

I want to know specifically what they are being accused of? If they are being accused of apostasy, where does church doctrine state they they cannot seek equality?