Shimano ultegra di2 for rim brakes for hydraulic disc brakes

I have a bike with 105 hydraulic disc brake. Im wondering if i could use an ultegra sti for rim brakes for my 105 hydraulic disc brake. Thanks


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No…for multiple reasons. The Di2 shifter wouldn’t be able to pull the cable to shift the 105 derailleurs and the rim brake lever wouldn’t be able to push the fluid for the hydraulic brakes.