Explanation
Yes. The 99th Academy Awards rules allow animated features to qualify for Best Picture. Having a dedicated animation award does not exclude them from the broader category.
Rule Seven permits animated features to qualify in other categories when their requirements and deadlines are met. Rule Twenty sets separate Best Picture conditions. Reuters also documents past Best Picture nominations for Beauty and the Beast, Up and Toy Story 3.
Eligibility is not a nomination. An animation-category entry must separately satisfy the Best Picture rules, including theatrical-release and representation requirements, and then receive enough votes to be nominated.
Key takeaway
Animated features can compete in both categories, but qualification and nomination are separate steps.