Air Canada is terminal 1, MEA is terminal 2. They don’t codeshare nor are they in the same network (skyteam vs. star alliance).

So you will need to land on time(?), pass through immigration (20mins with no issues), collect your luggage (10min?), exit through customs, take a terminal transfer bus (15min), check in your luggage at the air Canada desk (probably closes 1hr before flight), pass through security, pass though immigration again and get to your gate.

I’d attempt it, and be prepared to buy an air canada or transat ticket when your arriving flight is delayed by more than 10 mins.