The Ukrainian Catholic Church is one of the constituent members of the universal Catholic Church, as is the Latin rite Church, known as the RC Church.  
So I am a member of the universal Catholic Church just like you.  The positions of the universal Church affect me as much as they do anyone else who is a member.  There are certain rules that are different, and our Liturgy is markedly different, although certain core parts are very similar.    
Here is a source, if you choose to educate yourself:  http://ugcc.ua/en/.