Though muslims & christians have many principles in common, i guess they have many many diffrences, like what u said; muslims don't believe in Jesus Christ, they beleive no way God can become a human being, while chrisitians for example don't believe in Prophet Mohamed, and both beliefs are the core of religions, which means if u don't believe in Jesus Christ u can't be a chirsitan and if u don't believe in Prophet Mohamed u can't be a muslim, even the view of god in both religions are different, so i guess the answer would be no.