No, because the definition of "lesbian" is homosexual and female, and throwing the modifier "cis" in front implies that transwomen (male transitioners) are lesbian, which they are not (since they're male).

edit: I'll second sneeuweekhoorn's comment, as well. I always forget that trans rights activists believe that "cis" people supposedly identify with gender roles and stereotypes for women. I do not, I am gender non-conforming (and honestly I would argue that all LGB people are GNC, just by the fact that being same sex attracted goes against expected norms/roles for each sex), not transgender or "cis".