Could Germany have built an HMS Unicorn equivalent?

Would a German equivalent of HMS Unicorn have changed the Second World War at sea?

A converted Seydlitz could help support aviation around Norway or operate as a light carrier, but industrial limits and British attacks would constrain its value.

A German equivalent of HMS Unicorn would first require a decision to support naval aviation and an available conversion hull. Seydlitz is the practical candidate in this scenario because a new ship was unlikely to be completed with Germany's competing construction demands. The early cancellation of Graf Zeppelin's sister illustrates that industrial constraint. Converting Graf Zeppelin herself into a repair carrier would leave the repair ship without another carrier to support. Unicorn's own use as a light fleet carrier suggests that the German ship could instead operate aircraft if it omitted some maintenance facilities. That would make it useful around Norway, but also a priority target for British forces.