I need to know:
Can I something of NAT64 stateful with VSXR?
Sorry, I'm not sure of your question. Are you asking if NAT64 is stateful with the vSRX or are you asking something specific about NAT64?
Sorry because I don't be careful. My question in another way: VSRX support NAT64 stateful?
Looking at the Junos Feature Explorer it looks like the answer is no. I don't see vSRX on the list of supported platforms.