Yankee: YJ-15 is a scaled-down version of the YJ-12, designed to be mounted on the J-15's heavy pylon, and it is already on combat duty. Until the next-gen anti-ship missile for the J-35's internal weapons bay is ready, the naval air force will use it for the time being.
YJ-15 is still not the "target missile", but a transitional product.
By that, the YJ-15 should also be UVLS-capable. However, there likely won't be a need to, given the roles and responsibilities of FFGs in the PLAN.