This was a feature length anime availible on VHS/Betamax rental in the UK in 1985.
The film is set in a fairly shiny tech future and centres around a young boy growing up with his female robot companion.
As I remember it, the first half hour of the film has no dialogue at all, as the central character is a baby and does not speak, yet.
The female android was (I think) a golden colour with human face.
The female android could transform into a bag/backpack/briefcase.
Toward the end of the film, there is some sort of scene involving the female android being attached to the outside of a spaceship during entry/takeoff and being subjected to heat.
What is this anime?