E., I think there are two primary thoughts on "godparents" -
1. The thoughts of the Catholic church regarding their role in the life of the child, and how they should conduct themselves , both in the relationship and in the church community. http://www.catholiceducation.org/en/culture/catholic-cont...
According to this link, there are strict guidelines for the faith and behaviors of anyone asked and willing to be a godparent.
2. The views of society, regardless of the strict adherence to the laws of the church. http://www.mannersmentor.com/mom-manners-and-kids-too/the...
According to this link, religion is regarded as more of a spiritual journey that you will help guide the child through, being a role model. Additionally, a godparent would assume a more involved role in the event of a parental death.
Hopefully, between these two interpretations of what being a godparent entails, you & your husband can find a way to stay involved in your goddaughters life and continue to mentor her as she matures spiritually.
T.